The janirid isopods (Crustacea, Isopoda, Asellota) living on the sea star Echinaster brasiliensis Müller & Troschel at São Sebastião channel, Southeastern brazilian coast, with description of a new species

Abstract

ABSTRACT. Three species ofjanirid isopods were found on the sea star Echil/asle!" perfnnned nearly 73 % of the population. The janirids presented hOllleochrolllY witll th~ sea stars. and food and shelta were the observed benefits that the crustaceans received froll1 the association. A key to separate the 'pecics of Carpias with a spoon-like gnathopod is included.

An inverse latitudinal biodiversity pattern in asellote isopods (Crustacea, Peracarida) from the Southwest Atlantic between 35° and 56°S

“…4), and most of these specimens were attached on the surface of sea stars. This fact suggests that associations with other macroinvertebrates may benefit the isopods by providing food and shelter (see Harty 1979;Pires 1995;Doti et al 2008).…”

First record ofJaninellanom. nov. (Crustacea: Isopoda: Microparasellidae) in the South Atlantic: revision of the genus and description of a new Brazilian species

“…The sandy infra-littoral bottoms are poorly studied in South America, as well as in South Africa and Australia. Only sandy beaches (Siewing 1953;Albuquerque 1978;Silva et al 1991Silva et al , 1997Medeiros 1992;Santos 1994;Absalão and Esteves 1997) and the intertidal interstitial (Moreira and Pires 1977;Renaud-Mornant 1979;Pires 1980Pires , 1981Pires , 1982Pires , 19851995;Pires Vanin 1998;Corbisier 1993;Corbisier et al 1997;Wandeness et al 1997;Abreu 1998) have been studied in a few areas in southern Journal of Natural History 1827 South America, as well as in South Africa (McLachlan 1977;McLachlan et al 1977;McLachlan and Erasmus 1981) and in Australia (Schotte et al 1995 onwards;Wilson et al 2004). Therefore, it is not known whether the genus Janinella occurs in these parts of the world.…”

"Echinodermata do Canal de São Sebastião, São Sebastião (SP)"

“…Apesar desta ser uma prática comum em outros países, (Warner,1984), no Brasil, poucos trabalhos enfocando o filo Echinodermata foram realizados utilizando essa metodologia. Podemos citar como exemplo do uso do mergulho autônomo em pesquisas de equinodermes os trabalhos de Tavares & Borzone (1998), Giordano (1986), Guerrazzi (1999), MacCord & Duarte (2002) e MacCord & Ventura (2004), e as interações de outros organismos e equinodermes observadas por Freitas (1982aFreitas ( , 1982b, Pires (1995), Simone & Martins (1995) e Gibran (2002).…”